iOS cocapods 報錯ERROR: While executing gem ... (Errno::EPERM) Operation not permitted - /usr/bin

今天想使用cocapods，按步驟操作報錯了
ERROR: While executing gem … (Errno::EPERM)
Operation not permitted - /usr/bin/pod

解決方法：sudo gem install -n /usr/local/bin cocoapods –pre

一句完美解決。